Sealing means for window casements, doors and the like



T. MARPE May 24, 1966 SEALING MEANS FOR WINDOW CASEMENTS, DOORS AND THELIKE 2 Sheets-Sheet 1 Filed May 20, 1964 Fig.1

INVENTOR 77/1500 0R M041 6 Y Z a T. MARPE 3,252,255

DOORS AND THE LIKE May 24, 1966 SEALING MEANS FOR WINDOW CASEMENTS 2$heets-Sheet 2 Filed May 20, 1964 Fig.8 29 23 INVENTOR.

77l000 MAR/7E 'CQmv United States Patent 3,252,255 SEALING MEANS FORWINDOW CASEMENTS,

DUORS AND THE LIKE Theodor Marpe, 46 Horsterstrasse, Essen-Steele,Germany Filed May 20, 1964, Ser. No. 368,774 19 Claims. (Cl. 49-318)window framework, or the like, it is necessary to provide a slightspacing between the movable window casement and the window frame alongsubstantially the entire circumference thereof to insure a free openingof the win-' dow without bending either in the open or closed position.However, in providing free swinging of the window, one must sacrifice inthe sealing qualities of the closure. As a result, sealing devices invarious forms have been devised to resolve this particular problem;however, none to date have proven entirely satisfactory for one reasonor another.

In the known type of sealing device utilizing sealing rails, a reliableseal of the sealing rails in the circumferential grooves in the windowcasement is attained only when grooves and sealing rails are fittedtogether extremely accurately, a task which is not only difiicul-t toattain, but which increases the cost of the product considerably.Furthermore, it can be shown that in known constructions, as a result ofthe use of massive metal parts, it is very diflicult to handle theequipment and, as a result, this equipment is not very suitable for massproduction. In addition, the bulkiness and complexity of this prior artequipment results in increased production costs without providing acorresponding improvement in the sealing qualities thereof.

A reliable sealing means which, at the same time, is considerablycheaper to manufacture, is of less weight and is economically moresuitable for mass production is obtained in accordance with theinvention which provides sealing rails made from thin, U-shape formedfoil strips of springy, weather-proof material which abut the walls ofthe circumferential grooves in both the window frame and window casementin an elastically sealing manner. The foil strips are supported bysupport members provided each with a transverse pair by means of whichthe sealing rails may be selectively shifted into and out of sealingposition against the window casement. The sealing foil is preferablymade .2 mm. thick and consists of a non-corrosive steel, phosphor bronzeor other suitable material. By this means, it is possible to avoid theheavy U-shaped sealing rails used in known constructions and to replacethem with an elastically sealing foil of non-corrosive material having alight weight and a resiliency which will insure 'a tight seal. Theconnection of the foil with the drive means is accomplished byespecially short support members onto which the foil is attached bymeans of a cover strip.

In order to simplify and reduce the cost of the con nection further, theguide members consist of U-shaped formed sheet metal pieces which arefastened to the base of the circumferential groove by means ofrectangularly bent flanges. The drive members at each side of the windoware combined into a single rail which is provided with a multitude ofslanted slots to each of which is assigned a transverse pin and a guidemember. For sealing the corners of the circumferential grooves, anauxil- 7 iary foil strip is used in ZldClltlOn to the regular foilstrip.

It is an object of the instant invention to provide a sealing device forwindow easements, doors and the like utilizing movable sealing railshaving resilient sealing foils associated therewith such that extremelyhigh sealing qualities may be attained without the need for accuratelymachined parts.

It is a further object of the instant invention to provide a sealingdevice of the type described which may be produced at a relatively lowcost due to the use of smaller, more easily handled parts which areeasily adapted to mass production techniques.

It is another object of the instant invention to provide a sealingdevice of the type described which provides for especially good sealingqualities at the corners of the windows or the like to be sealed due tothe provision of auxiliary sealing foils at these locations.

It is still another object of the instant invention to provide a sealingdevice of the type described which is considerably cheaper tomanufacture, is of less weight, and is economically more suitable tomass production techniques while additionally capable of providingsealing qualities superior to known devices of a similar type not havingsuch characteristics.

It is still a furtherobject of the instant invention to provide asealing device of the type described wherein especially effectivesealing qualities can be'obtained by provision of sealing railshavingoutwardly extending foil strips capable of engaging the movablewindow casement or the Window pane itself in a force fit.

Further characteristics and advantages of the invention are given in thefollowing description of an exemplified embodiment of the invention inwhich the foil sealing strips are arranged in the inner circumferentialgroove of the window frame and are selectively moved into thecircumferential groove of the window casement and wherein:

FIGURE 1 is a partially broken-01f plan view of a window provided withthe inventive sealing means;

FIGURE 2 is a corner portion of the window in an enlarged scale;

FIGURE 3 is a cross section according to line III-III ofFIGURE 2;

FIGURE 4 is a cross section through a support member with foil strip;

FIGURE 5 is a cross section through a guide member;

FIGURE 6 is a corner seal of the window in a schematic view in which thetwo-way arrangement of the foil strip, the drive rail, and the partsbetween the two are illustrated; 7

FIGURE 7 is a front view'of the corner sealing by means of foil strips;

FIGURE 8 is a view of the expanded foil strips;

FIGURE 9 is a front view of the drive rail, and

FIGURE 10 is a partial cross section through a rnodified sealingarrangement in which a frameless thick glass pane is used as the windowcasement.

Looking first to FIGURES 1, 3 and 4, the frame 1 of the window generallysurrounds a pivotable or swingable wind-ow casement 2, which is providedwith a surrounding space 3 of at least 3 mm. Width, so that the easementin its position free of the sealing rails may be rotated or pivotedthrough approximately l without being restrained by the frame.

The inner circumference of frame 1 is provided with a circumferentialgroove 4 within which the sealing elements are shiftably arranged so asto selectively protrude into and close off the space 3 in their advancedposition, as illustrated in FIGURE 3. Opposite the circumferentialgroove 4 in the frame 1, the casement 2 is provided at its outercircumference with a counter-groove 5 into 0 which the sealing elementsare selectively moved whereby the space 3 is closed and the easement 2is sealed against the frame.

The sealing strip includes a foil strip 6 which is provided as a sealingelement at both lateral sides of the window, the lateral portions of thestrip 6 being bent over a U-shaped support member 7, as seen in FIGURES3 and 4, such that these lateral portions will flex against the innerwalls of the grooves 4 and 5 over their entire length. Thefoil strip 6reinforced by a cover strip 8 is fastened by means of screws 9 extendinginto the support member 7. As Will be seen, the foil sealing strips 6are not moved perpendicularly to the circumferential grooves 4 and 5 toeffect sealing of the space 3, but are moved through an angle of 45 sothat during their movement, the corners remain in tight contact at theperpendicularly connected sealing strips.

In order to produce this movement of the sealing strip 6 about an angleof 45, the transverse pins 11 attached to the support member '7, as seenin FIGURES 2, 3 and 4, extend into the slanted slots 12 provided in theguide pieces 13, which slots are at an angle of 45 to the longitudinaldirection of the respective groove portion. The guide pieces 13 areformed as U-shaped metal strips and are provided (FIGURE 5) at the endof their legs with rectangularly bent flanges 14 by means of which theyare screwed to the base of the circumferential groove 4.

The movement of the sealing strip 6 at each side of the window isproduced by a common drive member in the form of a punched rail 15(FIGURE 9) which is provided with slanted slots 16 each of whichembraces the transverse pins 11 and also at the same time works togetherin a coordinate with all support members of the respective window side.This drive rail 15 is, as FIG- URES 2 and 3 show, adjustably arrangedinside the guide piece 13. By a movement of the driving rails 15 in alongitudinal direction, the transverse pins 11 are moved upwardly ordownwardly by means of the slanted slots 16 in conjunction with thepermanently located oppositely disposed slanted slots 12 in the guidepieces 13 with which they engage. As a result of the disposition of theslots 12 and 16, the pins 11 are forced to moved at an angle of 45 inrelation to the longitudinal direction whereby the corresponding foilstrips 6 over the support members 7 are taken along in the samedirection. The entire sealing rail assembly thereby moves into thecounter groove or out thereof in response to selective actuation.

The driving rails 15 are connected at the corners of the window witheach other by short chains 17 or other suitable flexible linkage whichare carried over guide pulleys 18 to form a closed circuit into which,at an appropriate point, for example, at the left side of the frame(FIG- URE 1), a hand lever 21 engages a gear tooth system 19, therotation of which moves all sealing foils simultaneously in or out ofthe counter groove 5 by producing a longitudinal shifting in all of thedriving rails 15. The guide rollers 18 are supported at punched or castpedestals 22 (FIGURE 6) screwed to the base of the circumferentialgroove. The slanted grooves 16 of the drive rails 15 can be made with anarbitrary slant; however, the less the slanted slots 16 deviate from thelongitudinal direction,

the more is the reduction of the force at the hand lever 21 to overcomethe resistance of the movement of the sealing rails.

In order to accomplish 'corner sealing (FIGURE 7) of the foil strip 6,an auxiliary foil strip 23 (FIGURE 8) is provided at each corner of thesealing rail in addition to the main foil strip 6. -As can be seen fromFIGURE 8, the main foil strips 6, as well as the auxiliary foil strips23, are provided at one end with two slots 24, each directed alongbending lines 25. After bending the side portions 28 and 29 of the foilstrips 6 and 23, respectively, along the bending line 25, by means ofwhich the U-shape form shown in FIGURE 3 and FIGURE 4 is produced, themiddle tongues 26 and 39, respectively, formed by the slots 24, are bentperpendicularly upwardly about the bending lines 27 whereas the lateraltongues 28 and 29' maintain the direction of the bent side portions 28and 29.

In this condition, the two foil strips 6 and 23 are installed in theirwindow corner (FIGURE 7). The foil strip 6 in the corner, as shown inFIGURE 7, is vertical; its tongue 26 is horizontal. Both are covered bythe cover strip 8 constructed as a combined corner. Around the main foilstrip 6 together With tongue 26 and on the outside thereof is disposedthe horizontally erected auxiliary foil strip 23 together with thevertically upwardly bent tongue 30. A support member 7 is provided atthe outer end of tongue 30 which, together with the cover strip 8 andunder tight compression of the tongue 30 and the main foil strip 6, isscrewed or riveted together. On the horizontal part of the corner, thecover strip 8 together with the support member 7 arranged under thecover strip are screwed together or riveted together under tightcompression of tongue 26 and auxiliary foil strips 23.

It is obvious that the corner seal consisting of the parts 6, 26, 23, 30tightly combined with two support members 7 can be moved at an angle of45 relative to the perpendicular, whereby this corner seal, relative tothe neighboring corner seals moving in a perpendicular directionthereto, remains entirely sealed. As is evident from FIG- URE 7, thelateral tongues 23' and 29 of the main foil strip 6 and the auxiliaryfoil strip 23, respectively, cover each other at the most outer cornerportions.

FIGURE 10 shows a modified form of the scaling in which a thickframeless glass panel 31 is used as the window casement which, along itscircumferential edges and on each side thereof, is provided with smallsheet metal strips 32 made of springy material which define a lowerspace 32 and into which the sealing rail 6 may be tightly moved so as toproduce a force fit. In place of this, corresponding sheet rnetal strips32 may also be provided laterally on the foil strip 6 so as to protrudeon both sides over the edges of the glass pane 31 during the movement ofthe foil strip 6 forming a force fit with said glass.

Although the invention is described in connection with the sealing of awindow, the scope of the invention is such that the same sealing mayalso be used with corresponding suitable construction for doors, flaps,closing devices,

and other wall openings. Therefore, the scope of the invention is to belimited only to that attributed to the attached claims.

I claim: 1. A sealing device for windows, especially casementtypewindows provided with a window frame and a movable window casement eachhaving facing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window comprising: aplurality of sealing rails movably arranged within the circumferentialgroove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said guide members,

drive members actuated in the direction of the circumferential groove insaid window frame such that movement of said drive members in relationto said guide members will effect a shifting of said sealing rails froma first position within said circumferential groove of said window frameto a second' position blocking the space between said window frame andsaid window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallyscaling manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto.

2. A sealing device for windows, especially casementtype windowsprovided with a window frame and a movable window casement each havingfacing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window comprising:

a plurality of sealing-rails movably arranged within the circumferentialgroove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said guide members,

drive members actuated in the direction of the circumferential groove insaid window frame such that movement of said drive members in relationto said guide members will effect a shifting of said sealing rails froma first position within said circumferential groove of said window frameto a second position blocking the space between said window frame andsaid window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in anelastically-sealing manner and are mounted on support memberssurrounding said guide members, said support members having saidtransverse pins secured thereto,

said foil strips having a thickness of substantially .2

mm. and being made of a non-corrosive steel, phosphor bronze. 3. Asealing device for windows, especially casementtype windows providedwith a window frame and a movable window casement each having facingcircumferential grooves and being slightly spaced from one another toprevent binding upon opening said window comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame,-

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said guide members,

drive members actuated in the direction of the circumferential groove insaid window frame such that movement of said drive members in relationto said guide members will effect a shifting of said sealing rails froma first position within saidcircumferential groove of said window frameto a second position blocking the space between said window frame andsaid window casing, said sealing rails including U-shaped foil strips ofspringy material which abut the walls of the circumferential groove inan elastically sealing manner and are mounted on supportmemberssurrounding said guide members, said support members having saidtransverse pins secured thereto,

said foil strips having a thickness of substantially .2 mm. and beingmade of a non-corrosive steel, phosphor bronze,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove in said window frame by means ofrectangularly bent flanges. 4. A sealing device for windows, especiallycasementtype windows provided with a window frame and a movable windowcasement each having facing circumferential grooves and being slightlyspaced from one another to prevent binding upon opening said window,comprising: a plurality of sealing rails movably arranged within thecircumferential groove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said' guide members,

drive members actuated in the direction of the circumferential groove insaid window frame such that movement of said drive members in relationto said guide members will eifect a shifting of said sealing rails froma first position within said circumferential groove of said window frameto a second position blocking the space between said window frame andsaid window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove in said window frame by means ofrectangularly bent flanges,

said drive members having further inclined slots extending oppositely tothe inclined slots in said stationary guide members, said furtherinclined slots ,also engaging said transverse pins.

5. A sealing device for windows, especially casementtype windowsprovided with a window frame and a movable window casement each havingfacing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window, comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame, stationary guide members having inclinedslots for limiting the extent of movement of said sealing rails, saidsealing rails being provided with transverse pins engaging said guidemembers, 7 drive members actuated in the direction of thecircumferential groove in said window frame such that movement of saiddrive members in relation to said guide members will effect a shiftingof said sealing rails from a first position within said circumferentialgroove of said window frame to a second position blocking the spacebetween said window frame and said window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove in said window frame by means ofrectangularly bent flanges, said drive members having further inclinedslots extending oppositely to the inclined slots in said stationaryguide members, said further inclined slots also engaging said transversepins,

reinforcing means for securing said foil strips to said U-shapedsupports as well as serving to reinforce said foil strips.

- 6. A sealing device for windows, especially casementtype windowsprovided with a window frame and a mov able window casement each havingfacing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame,

1 stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said guide members,

drive members actuated in the direction of the circuma ferential groovein said window frame such that movement of said drive members inrelation to said guide members will eflfect a shifting of said sealingrails from a first position within said circumferential groove of saidwindow frame to a second position blocking the space between said windowframe and said window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said drive members having further inclined slots extending oppositely tothe inclined slots in said stationary type windows provided with awindow frame and a movable window casement each having facingcircumferential grooves and being slightly spaced from one another to(prevent binding upon opening said window, comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame,

stationary guide members having inclined slots for limiting the extentofmovement of said sealing rails, said sealing rails being provided withtransverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove insaid window frame and having fur-, ther inclined slots extendingoppositely to the inclined slots in said stationary guide members andalso engaging said transverse pins such that movement of said drivemembers in relation to said guide members will effect a shifting of saidsealing rails from a first position within said circumferential grooveof said window frame to a second position blocking the space betweensaid window frame and said window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circum ferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove by means of rectangularly bent flanges,

reinforcing means for securing said foil strips to said U- shapedsupports under high pressure, and

auxiliary foil means having a portion thereof interleaved with saidU-shaped foil strip at the corners of said Window frame on said sealingrails so as to provide an essentially complete seal at said corners.

8. A sealing device for windows, especially casement-,

type windows having a window frame and a movable window casement eachhaving facing circumferential grooves, comprising sealing means movablyarranged within the groove in said window frame along the entire lengththereof, guide means for directing movement of said sealing meansbetween a first position entirely within said window frame groove and asecond position effectively blocking any openings between said windowframe and window casement, and drive means for moving said sealing meansfrom said first position to said second position, said sealing means,guide means and drive means being arranged in overlapping stackedrelationship to one another around substantially the entire periphery ofsaid window frame with said guide means enclosing said drive means andsaid sealing means enclosing both said guide means and said drive meansin said first position of said sealing means.

9. A sealing device for windows, especially casementtype windowsprovided with a window frame and a movable window casement each havingfacing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window, comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame,

. 8 H ment of said drive members in relation to said guide members willeffect a shifting of said sealing rails from a first position withinsaid circumferential groove of said window frame to a second positionblocking the space between said window frame and said window casing,

said sealing means, guide means and drive means being arranged inoverlapping stacked relationship to one another around substantially theentire periphery of said window frame with said guide means enclosingsaid drive means and said sealing means enclosing both said guide meansand said drive means in said first position of said sealing means.

10. A sealing device for windows, especially casementtype windowsprovided with a window frame and a movable window casement each havingfacing circumferential grooves and beingslightly'spaced from one anotherto prevent binding upon opening said window, comprising:

drive members actuated in the direction of the circumferential groove insaid window frame such that movement of said drive members in relationto said guide members will effect a shifting of said sealing rails froma first position within said circumferential groove of said window frameto a second position blocking the space between said window frame andsaid window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto.

11. A sealing device for windows, especially casementtype windowsprovided with a window frame and a movable window casement each havingfacing circumferential grooves and being slightly spaced from oneanother to prevent binding upon opening said window, comprising:

a plurality of sealing rails movably arranged Within the circumferentialgroove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove insaid window frame and having further inclined slots extending oppositelyto the inclined slots in said stationary guide members and also engagingsaid transverse pins such that movement of said drive members inrelation to said guide members will effect a shifting of said sealingrails from a first position within said circumferential groove of saidwindow frame to a second position blocking the space between said windowframe and said window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said U-shaped foil strips each being provided at one end thereof with apair of slots eifectively forming three tongue portions in said strip,the central one of said tongue portions being bent perpendicularly tothe base and in an opposite direction to the side portions of saidU-shaped strips.

12. A sealing device for windows, especially casementtype windowsprovided with a substantially rectangular window frame and a movablewindow casement each having facing circumferential grooves and beingslightly spaced from one another to prevent binding upon opening saidwindow, comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove insaid window frame and having further inclined slots extending oppositelyto the inclined slots in said stationary guide members and also engagingsaid transverse pins such that move ment of said drive members inrelation to saidguide members will effect a shifting of said sealingrails from a first position within said circumferential groove of saidwindow frame to a second position blocking the space between said windowframe and said window casing,

said sealing rails including U-shaped foil strips of springy materialwhich abut the walls of the circumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove by means of rectangularly bent flanges,said sealing rails providing at each corner of said window frame inaddition to said U-shaped foil strips, a short auxiliaryfoil stripsecurely fastened to said U-shaped foil strip such that the ends of eachof said strips overlaps the other foil in mutually transversedirections. 13. A sealing device for windows, especially casement-typeWindows provided with a substantially rectangular window frame and amovable window casement each having facing circumferential grooves andbeing slightly spaced from one another to prevent binding upon openingsaid windows, comprising:

a plurality of sealing rails movably arranged within the circumferentialgroove of said window frame.

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove insaid window frame and having further inclined slots extending oppositelyto the inclined slots in said stationary guide members and also engagingsaid transverse pins such that movement of said drive members inrelation to said guide members will effect a shifting of said sealingrails from a first position within said circumferential groove of saidwindow frame to a second position blocking the space between said windowframe and said window casing,

said sealingrails including U-shaped foil strips of springy materialwhich abut the walls of the cir-' cumferential groove in an elasticallysealing manner and are mounted on support members surrounding said guidemembers, said support members having said transverse pins securedthereto,

said guide members consisting of U-shaped supports fastened to the baseof the circumferential groove by means of rectangularly bent flanges,

said sealing rails providing at each corner of said window frame inaddition to said U-shaped foil strips a short auxiliary foil stripsecurely fastened to said U-shaped foil strip such that the ends of eachof said strips overlaps the other foil in mutually transversedirections,

and angular reinforcing means for securing said U- shaped foil stripsand said auxiliary foil strips to said U-shaped supports such thatportions of said foil limiting the extent of movement of said sealingrails, said sealing rails being provided with transverse pins engagingsaid inclined slots, drive members actuated in the direction of thecircumferential groove in said window frame and having further inclinedslots extending oppositely to the inclined slots in said stationaryguide members and also engaging said transverse pins such that movementof said drive members in relation to said guide members will effect ashifting of said sealing rails from a first position within saidcircumferential groove of said window frame to a second positionblocking the space between said window frame and said window casing,said window casement including a frameless glass pane provided along thecircumference on both sides thereof with protruding springy stripsforming a space therebetween, said sealing rails being movable by saiddrive members under control of said guide members into said space with aforce fit so as to provide an essentially complete seal between saidframe and said casing. 15. A sealing device for windows, especiallycasementtype windows provided with a window frame and a movable windowcasement each having facing circumferential grooves and being slightlyspaced from one another to prevent binding upon opening said window,comprising: a plurality of sealing rails movably arranged within thecircumferential groove of said window frame,

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being providedwith transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove insaid window frame and having further inclined slots extending oppositelyto the inclined slots in said stationary guide members and also engagingsaid transverse pins such that movement of said drive members inrelation to said guide members will effect a shifting of said sealingrails from a first position within said circumferential groove of saidwindow frame to a second position blocking thespace between said windowframe and said window casing,

said sealing rails including laterally protruding foil strips capable ofengaging said movable window casernent when driven to its operativeposition by said drive members under control of said guide members. 16.A sealing device for windows, especially casement-type windows having awindow frame and a movable window casement each provided with facingcircumferential grooves, comprising:

sealing means movably arranged within the groove in said window framealong the entire length thereof,

guide means for directing movement of said sealing means between a firstposition entirely within said Window frame groove and a second positioneffectively blocking any openings between said window frame and windowcasement, and drive means for moving said sealing means at an angle fromsaid first position to said second position,

said sealing means including a plurality of resilient foil strips ofspringy material which abut the walls of said circumferential grooves inan elastically sealing manner.

stationary guide members having inclined slots for 17. A sealing devicefor windows, especially casementtype windows having a window frame and amovable window casement each provided with facing circumferentialgrooves, comprising:

sealing means movably arranged within the groove in said window framealong the entire length thereof, guide means for directing movement ofsaid sealing means between a first position entirely within said windowframe groove and a second position effectively blocking any openingsbetween said window frame and window casement, and

drive means for moving said sealing means at an angle fro-m said firstposition to said second position,

said sealing means including a plurality of resilient foil strips ofspringy material which abut the walls of said circumferential grooves inan elastically sealing manner,

said guide means having inclined slots for limiting the extent ofmovement of said sealing means, said sealing means being provided withtransverse pins engaging said inclined slots. 18. A sealing device forwindows, especially casementtype windows having a window frame and amovable window casement each provided with facing circumferentialgrooves, comprising:

sealing means movably arranged within the groove in said window framealong the entire length thereof,

guide means for directing movement of said sealing means between a first.position entirely within said window frame groove and a second positioneffectively blocking any openings between said window 'rame and windowcasement, and

drive means for moving said sealing means at an angle from said firstposition to said second position,

said sealing means including a plurality of resilient foil strips ofspringy material which abut the walls of said circumferential groovesin' an elastically sealing manner,

said guide means having inclined slots for limiting the extent ofmovement of said sealing means, said sealing means being provided withtransverse pins engaging said inclined slots,

12 said drive means having further inclined slots extending oppositelyto the inclined slots in said stationary guide members, said furtherinclined slots also engaging said transverse pins. 19. A sealing devicefor windows, especially casementtype windows having a wnidow frame and amovable window casement each provided with facing circumferentialgrooves, comprising:

sealing means movably arranged within the groove in said window framealong the entire length thereof,

guide means for directing movement of said sealing means between a firstposition entirely within said window frame groove and a second positioneffectively blocking any openings between said window frame and windowcasement, and drive means for moving said sealing means at an angle fromsaid first position to said second position,

said sealing means including a plurality of resilient foil strips ofspringy material which abut the walls of said circumferential grooves inan elastically sealing manner,

said guide means having inclined slots for limiting the extent ofmovement of said sealing means, said sealing means being provided withtransverse pins engaging said inclined slots, said drive means havingfurther inclined slots extending oppositely to the inclined slots insaid stationary guide members, said further inclined slots also engagingsaid transverse pins,

auxiliary foil means interleaved with said resilient foil strips atselective locations along the circumference of said window frame so asto provide a movable sea] at these locations.

References Cited by the Examiner UNITED STATES PATENTS 509,704 11/1893Thiel 2051 2,207,065 7/1940 McCormick 20-48 2,753,020 7/1956 Ware l89-69HARRISON R. MOSELEY, Primary Examiner.

8. A SEALING DEVICE FOR WINDOWS, ESPECIALLY CASEMENTTYPE WINDOWS HAVINGA WINDOW FRAME AND A MOVABLE WINDOW CASEMENT EACH HAVING FACINGCIRCUMFERENTIAL GROOVES, COMPRISING SEALING MEANS MOVABLY ARRANGEDWITHIN THE GROOVE IN SAID WINDOW FRAME ALONG THE ENTIRE LENGTH THEREOF,GUIDE MEANS FOR DIRECTING MOVEMENT OF SAID SEALING MEANS BETWEEN A FIRSTPOSITION ENTIRELY WITHIN SAID WINDOW FRAME GROOVE AND A SECOND POSITIONEFFECTIVELY BLOCKING ANY OPENINGS BETWEEN SAID WINDOW FRAME AND WINDOWCASEMENT, AND DRIVE MEANS FOR MOVING SAID SEALING MEANS FROM SAID FIRSTPOSITION TO SAID SECOND POSITION, SAID SEALING MEANS, GUIDE MEANS ANDDRIVE MEANS BEING ARRANGED IN OVERLAPPING STACKED RELATIONSHIP TO ONEANOTHER AROUND SUBSTANTIALLY THE ENTIRE PERIPHERY OF SAID WINDOW FRAMEWITH SAID GUIDE MEANS ENCLOSING SAID DRIVE MEANS AND SAID SEALING MEANSENCLOSING BOTH SAID GUIDE MEANS AND SAID DRIVE MEANS IN SAID FIRSTPOSITION OF SAID SEALING MEANS.